English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We develop the holographic renormalization of AdS_2 gravity systematically.We find that a bulk Maxwell term necessitates a boundary mass term for thegauge field and verify that this unusual term is invariant under gaugetransformations that preserve the boundary conditions. We determine theenergy-momentum tensor and the central charge, recovering recent results byHartman and Strominger. We show that our expressions are consistent withdimensional reduction of the AdS_3 energy-momentum tensor and theBrown--Henneaux central charge. As an application of our results we interpretthe entropy of AdS_2 black holes as the ground state entropy of a dual CFT.

Holographic Description of AdS_2 Black Holes